Carl Brigham on intelligence (1923): a fake quote
On various socialist and egalitarian writings as well as the academic literature, one can find attacks on intelligence testing due to the bad early guys. One common example is Carl…
Not just dysgenic outcomes, but dysgenic intentions too
I have a new study out with Ed Dutton: Kirkegaard, E. O. W. & Dutton, E. Intelligence and Anti-Natalist Intentions on Dating Sites: An Analysis of the OKCupid Dataset. In…
Personality structure problems
In hereditarian circles, there's a lot of talk about the general factor of personality (GFP). Briefly, the data shows that if you take typical Big Five (OCEAN) tests, they tend…
Interview with me by Hitchslap on intelligence, polygenic scores, behavioral genetics and more
Just finished a Twitter Space interview with Hitchslap. It was FAQ style format and lasted about 2.5 hours, so I was getting hoarse at the end. Hope you enjoy! https://twitter.com/i/spaces/1kvJpmMbZQdxE…
Ancient genomes discussion with Davide Piffer & Emil at Lake Como
As announced late August, here is the promised discussion with Davide Piffer on ancient genomics: where we are, and where we hope to go. 1 hour and 7 minutes. https://www.youtube.com/watch?v=8_XbrzSfEz4…
How to make psychology items (questions) with ChatGPT4
In the comments on my last post on measuring intelligence in online surveys, PaleoPolak asked: > It is fairly easy to make new vocabulary items for most languages using the…
Measuring intelligence online: best practices
Over the years I have been involved in quite a number of studies that measured intelligence (g) online in some way or another. Since people occasionally ask what is a…
The dream of ratio scale psychology measures
Anon asks: Dear Emil Kirkegaard, I just read your article about the intelligence quotient being very arbitrary and not being able to divide or multiply with it, what about raw…
On Paul Bloom’s Psych (2023)
Psychology is a popular field, so there's quite a big market for introductory textbooks. I occasionally read these just to see how authors are introducing and treating various topics. In…
Polygenic score validity and group differences
Probably the most common objection to studies of polygenic scores for education/intelligence for race differences is that the polygenic scores are less valid for non-European populations. For instance, here's a…
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